Jacob sdtgler



(No Model.

J. SINGLER.

DOUBLE AGTI'NGIIUMB.

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, above the buckets.

I closes on a seat,I."

'JA'coB SINGLER, OF scr. LOUIS, MISSOURI.

DOUBLE-:ACTING'PUMP.

SPECIFICATION forming part'of Letters Patent a... 290,125, datedDecember ll, 1883.

Application filed may 2111233. (1% model.) i 'Y To all whom, it mayconcern:

Be it known that I, JACOB SINGLER, of the city of St. Louis and State ofMissouri, have invented a certain new and useful Improvement inDouble-Acting Pumps, of which the following is a full,-clear, and exactdescription, reference beinghad'to the accompanying drawings, formingpartof this specification.

This pump is intended for use in bored wells and other situations.

The scope of the invention is set forth in the claims.

Figure 1 is a vertical axial section at 1 2, Fig. 3, showing the bucketsdown and ascending. Fig. 2 is a similar section with the buckets up anddescending. Fig.3 is a transverse section on the jogged line 3 3, Fig.2. Fig. 4 is a transverse sectionat44, Fig.2. Fig. 5 is a transversesection at'l'rfi, Fig. 2. Fig. 6 is atransverse section at 6 6, Fig. 2.Fig. 7 is a bottom view of a valve.

The cylinder-casting A has a central cylindrical bore, B, and certainsemi-annular passages for the liquid outside the said bore.

0 is the induction-opening of the cylinder. A screw-thread is shownfor'the attachment of a suction-pipe. i

D is a valve-port leading to a semi-annular or segmental passage, E,that extends up in the wall of the cylinder to the upper part of thebore B, beneath the stuffing-box F. Thus through port D and passageE theliquid enters the bore The port D is'closed by a downwardly-closingvalve, G, having a seat, G. H is a passage for liquid leading from theinduction to the port of a valve, 1, said port communicating with thelower end of the bore B. The valve I, like that G, closes downward, soas to prevent the escape of water downward from the interior of thecylinder. Thevalve Its upward movement is limited by a bar, I Y

J and K are two buckets working in the inder-bore B. These buckets areconnected by a rod, L, so that they'are moved simultaneousjly by meansof the pitman M, that is connected to the upper bucket. Both buckets areshown packed in the cylinder-boreby ring-packing N and leather or rubberpacking O. Thebucket J has a port; J, extending through it, thatisclosed during the ascent of the bucket by a faces fitting the sides ofthe port.

bar, P, to whoselower ends is cast a screw-ring screwing into the bucketJ, and-whose flange P serves to hold the soft packing 0' in place. Tothe arch or bar B the rod L is attached, andthe upper end of said rod isattached to a similar arched bar,Q, connected to the bucket Kby ascrew-ring, Q, that serves to hold the packing O in place, and alsoforms a bearing for the lower end of a spring, R, whose upper end bearsagainst the under side of a valve, S, closing upwardly'ag'ainst'a seat,S, arid thus preventing the passage of water through the port S v of thebucket K when the bucket is descending. The pitman M is attached to across bar, K, of the bucket, and works in a stuffingdownwardly-closingvalve, J The upward movement of the valve is limited by a bridgebox, F,separating the upperend of the cylinder-bore B from thedischarge-chamber T.

U isa semi-annular passage connecting the discharge-chamber T with thecentral part of the ,bore B, and which forms the way through which allthe liquid escapes from the cylinder to the discharge-pipe thatisscrewed into the eduction-op ening V.

The valves all are of similar and novel construction, beingguidedbyfingers X, set in a circular series andfitting against the sidesof the valve-ports. The guide-fingers are made narrow at 00, so as toallow free or easy passage to the liquid outwardly between the valve andseat, but are extended atw in broad curved Thus it will beseen that theliquid will pass readily beneath the valve while the fingers will havean extended bearing-surface, :10, against the sides of theport.

The operation of the pump is as follows: Whenthe buckets aremovingupward, as shown in-Fig. 1, the valves I and S are open and thevalves Gand J closed, and water enters the cylinden-bore through passage H andport of valve I, and escapes from the cylinder through passage U T V.WVhen the buckets-J K are.

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ing interior bore, B, and side passages, E U, the passage Ecommunicating with the'induction-opening and top of the bore, and thepassage U with the ednotion-opening and middle of the bore, buckets Jand K, connected together,working in the bore. and having valves openingtoward the middle of the bore, and the check-valves G and I at the lowerends of the passage E and bore 13, respectively.

2. The combination, in apump, of the pitman working centrally in theeduction-opening, and a stuffing-box through which the pitman works, andwhich is interposed between the bore or barrel in which the bucketswork, two buckets secured to the pitnlan having in-

